What it is: A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. Under free market conditions, prices are determined almost exclusively by the forces of supply and demand.
NuvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.This is the earliest possible date that a generic version of NuvaRing could become available. However, there are other circumstances that could come up to extend the exclusivity period of NuvaRing beyond 2018.This could include such things as other patents for specific NuvaRing uses or lawsuits.uvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.
1 Remove your old NuvaRing for 1 week (7 days) and insert a new NuvaRing 1 week (7 days) later (See Steps 1 through 4). 2  If you leave NuvaRing in your vagina longer than 4 weeks (28 days), remove the ring and check to make sure you are not pregnant. Note: Insert and remove NuvaRing on the same day of the week and at the same time: 2  For example, if you insert your NuvaRing on a Monday at 8:00 am, you should remove it on the Monday 3 weeks later at 8:00 am. 3  After your 1 week (7 days) break, you should insert a new NuvaRing on the next Monday at 8:00 am.